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Schilder, Lisa ; Maaß, S. ; Jess, Andreas:
Effective and Intrinsic Kinetics of Liquid-Phase Isobutane/2-Butene Alkylation Catalyzed by Chloroaluminate Ionic Liquids.
In: Industrial & Engineering Chemistry Research.
Bd. 52
(2013)
Heft 5
.
- S. 1877-1885.
ISSN 1520-5045
DOI: https://doi.org/10.1021/ie3028087
Abstract
The kinetics of the IL-catalyzed reaction of isobutane with 2-butene and the size distribution of the dispersed IL droplets were investigated in a stirred tank reactor. The results were used to calculate the intrinsic reaction rate constant with a model accounting for the interplay of external and internal mass transport and chemical reaction. The intrinsic reaction rate was found to be very high, leading to a low effectiveness factor of the IL catalyst. The used fraction of the IL droplets with a diameter of about 400 ?m was very small, and the actual reaction took place only in a thin spherical shell with a thickness of about 5 ?m.